This 1970's kid skin leather short coat by Bonnie Cashin sports her signature twist locks that she adapted from canvas boat fastenings in the 1950's. This illustration is from a brochure published by Gene Burton shop on Lake Ave. in Pasadena, CA during the 1970's. From it we find that this leather coat retailed for $200 and came in white, sand, redwing red, navy, lemon yellow or sandstone.
Shown below are some examples of the twist locks used on many of her coat designs. You will also notice the extensive use of leathers in her fabrications.
Here's a peak at the inside: